My guess would be 250-300 lb. Maybe a bit more. I'm assuming the bed is still off. Can you get to it to check? You could stick a scale under each end and add together what you get.
Or you could measure it and add up the area of the components. 16 gauge steel weighs 2.5 lb/sq ft.
Its off but shoved up in the corner, it was such a hellish process I don't dare touch it and dig it out from under the other body parts. My guess is it'll be 3-400ish as there's a big steel rear bumper and the prior owner had some concrete in the fence post holes.
